CN103054637A - Sliding locking external fixing support - Google Patents
Sliding locking external fixing support Download PDFInfo
- Publication number
- CN103054637A CN103054637A CN2011103289575A CN201110328957A CN103054637A CN 103054637 A CN103054637 A CN 103054637A CN 2011103289575 A CN2011103289575 A CN 2011103289575A CN 201110328957 A CN201110328957 A CN 201110328957A CN 103054637 A CN103054637 A CN 103054637A
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- sliding
- stress
- fracture
- locking
- pipe
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Abstract
The invention discloses a sliding locked external fixing support which comprises a main pipe, a sliding pipe, a locking sliding block, a stress spring and an adjusting rod. The sliding locking external fixing support is characterized in that one end of the main pipe is capable of enabling the thin end of the sliding pipe to slide freely inside the main pipe, a locking sliding block is arranged at the thin end of the sliding pipe, a cone-shaped screw hole is locked on the sliding block, the locking sliding block becomes coarse when a locking screw is screwed in, and the outer circle of the sliding block closely contacts with the inner circle of the main pipe to generate resistance force. The main pipe is enabled to be fixed with the sliding pipe, and a fixation of fracture is formed. When bearing force is larger than resistance force, the support slides to enable broken end of the fracture to be stimulated by physical stress continuously, and stress shielding of the support is eliminated. The stress spring inside the support is capable of producing constant stress stimulation to the broken end of the fracture, and accelerates recovery of the fracture.
Description
Technical field
The present invention relates to a kind of orthopedic medical device, be specifically related to a kind of exterior fixation bracket for fracture site.
Background technology
At present, to the treatment of extremity position fracture, use exterior fixation bracket little with its wound, it is fast to suffer from the limb functional rehabilitation, and without the Readmission treatment, expense is low and be widely used in clinical.The telescopic adjustment mode of exterior fixation bracket has all adopted the screw mandrel principle substantially, prolong or shorten support by forward and reverse rotation, locking screw mandrel after-poppet keeps fixing, bearing gravity can not change yet, the stress stimulation of fracture site is disappeared, cause exterior fixation bracket that fracture site is existed stress shielding.For eliminating the stress shielding of exterior fixation bracket, many orthopedics experts utilize the elasticity of locking pin or leave inching gear in the shelf structure, make fracture site keep stress stimulation, and effect is all undesirable.
The technical problem that patent of the present invention will solve is to eliminate the stress shielding of exterior fixation bracket, present exterior fixation bracket is used for regulating fixing screw structure uses slide lock device instead.Size with locking torsion makes slide block produce different resistances, certain resistance can bear certain gravity, when gravity during greater than drag loads, carriage will slide, make fracture face keep close contact, fracture site has lasting stress stimulation, thereby eliminates the stress shielding of exterior fixation bracket.
For solving stress shielding, patent of the present invention provides a kind of exterior fixation bracket of following structure, comprises supervisor, sliding tube, lock slider, stress spring, lock screw, adjusting rod, adjusting rod fixing screw, pinning folder and nail.
Its construction features is that supervisor's a end can allow the taper end of sliding tube be free to slide in its pipe, can not rotate, and the sliding tube taper end is provided with lock slider, and lock slider is oblate long piece, has tension lines, and the other end can be fixed on the sliding tube.There is conical bolt hole at the center of sliding shoe, is screwed into the chap of lock screw rear slider, and the slide block cylindrical produces resistance with supervisor's inner circle close contact.The garden closely is slidingly matched with supervisor's inner circle outside the lock dog when not locking, and can slide in supervisor, makes exterior fixation bracket show prolongation and shortens function.Early be responsible for a rectangular opening is arranged on the wall, the lock screw of slide block is mobile in opening, when tightening lock screw, lock dog chap and supervisor's inwall close contact, supervisor and sliding tube are fixed, formed fixing fracture, the resistance that carriage produces is keeping the stable of support, the large I of resistance is adjusted as required, make exterior fixation bracket be in a kind of metastable state, when bearing capacity during greater than resistance, sliding appears in support, making fracture site constantly obtain physiological stress stimulates, and has eliminated the stress shielding of support.Put into the stress spring of different elastic force from the butt end of sliding tube, the lock dog hold-doun nut of screwing on, stress spring can make fracture site produce the stress stimulation that continues.At supervisor's the other end adjusting rod set bolt of screwing on, unscrew the lock screw on the slide block, the rotation adjusting rod can be to the sliding tube fine adjustments of stretching.Adjusting rod can be removed after the fracture fixation support is first-class, keep the non-stress shielding of support.
Description of drawings
Be described in further detail below in conjunction with the concrete mode of accompanying drawing to patent of invention:
Fig. 1 is the structural representation of patent of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the user mode sketch map of this patent;
The specific embodiment
Slide lock exterior fixation bracket as depicted in figs. 1 and 2 comprises supervisor 1, sliding tube 2, lock slider 3, lock screw 4, lock dog hold-doun nut 5, stress spring 6, adjusting rod 7, adjusting rod set bolt 8, locking nail folder 9, nail 10.The taper end of sliding tube 2 is equipped with lock slider 3, together insert an end of supervisor 1, can be in supervisor's 1 interior slip, lock screw 4 on the lock slider 3 is being responsible for 1 rectangular pinning mouth slide inside, after tightening lock screw 4, lock slider 3 cylindricals and supervisor's 1 inner circle close contact produce resistance and make supervisor 1 fixing with sliding tube 2.In the butt end of sliding tube 2, there is stress spring 6 fixing by lock dog hold-doun nut 5, can makes fracture site keep a constant stress stimulation.The other end supervisor has adjusting rod set bolt 8, and with adjusting rod 7, rotation adjusting rod 7 can be to the fracture adjustment that retracts or pressurize.
As shown in Figure 3, nail 10 is contained on the nail folder 9 during use, again nail folder 9 is installed in respectively on supervisor 1 and the sliding tube 2, after fracture site resets, nail 10 is pierced in the skeleton bone fixation nail clip 9, the light lock screw 4 of twisting produces little resistance and keeps broken ends of fractured bone reset mode.Television perspective fracture site, check broken ends of fractured bone para-position can be finely tuned by adjusting rod 7 as dissatisfied the line situation, lock lock screw 4 after reaching requirement again, remove adjusting rod set bolt 8.Need constant stress to stimulate such as fracture site, put into stress spring 6 at the butt end of sliding tube 2, fixing with lock dog hold-doun nut 5.What do not need that constant stress stimulates removes stress spring 6, directly is screwed into lock dog hold-doun nut 5 fixedly locked slide blocks.
Claims (3)
1. slide lock exterior fixation bracket, comprise supervisor (1), sliding tube (2) and sliding locking mechanism, it is characterized in that: the sliding end of sliding tube (2) is equipped with lock slider (3), taper lock screw (4) is arranged above it, unscrew pinning (4), exterior fixation bracket can prolong rapidly or shorten.
2. slide lock exterior fixation bracket according to claim 1 is characterized in that at supervisor's (1) the other end adjusting rod set bolt (8) being arranged, and rotation adjusting rod (7) can carry out micro-positioning regulators to exterior fixation bracket.
3. slide lock exterior fixation bracket according to claim 1 is characterized in that at the tubbiness of sliding tube (2) stress spring (6) being housed, and is fixing with lock dog hold-doun nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103289575A CN103054637A (en) | 2011-10-18 | 2011-10-18 | Sliding locking external fixing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103289575A CN103054637A (en) | 2011-10-18 | 2011-10-18 | Sliding locking external fixing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103054637A true CN103054637A (en) | 2013-04-24 |
Family
ID=48097751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103289575A Pending CN103054637A (en) | 2011-10-18 | 2011-10-18 | Sliding locking external fixing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103054637A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350021Y (en) * | 1998-12-21 | 1999-11-24 | 侯树勋 | External fixator |
| CN2577783Y (en) * | 2002-10-12 | 2003-10-08 | 刘勇 | External fixing supporter for bone fracture |
| DE102006008515A1 (en) * | 2006-02-23 | 2007-09-06 | Sports-Ace International Co., Ltd. | Stick with adjustable length to act as a staff has an internal tube in an external tube so as to rotate and move on axis as well as a ringed stopper, a longitudinal slot and a cone-shaped wall |
| CN201123842Y (en) * | 2007-12-20 | 2008-10-01 | 周建明 | Exterior fixing rack system |
| CN201420734Y (en) * | 2009-06-03 | 2010-03-10 | 潍柴动力股份有限公司 | Telescopic rod |
| CN201905991U (en) * | 2010-11-26 | 2011-07-27 | 徐利江 | Stretching, pressurizing and adjusting rod for external bone fixation |
-
2011
- 2011-10-18 CN CN2011103289575A patent/CN103054637A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350021Y (en) * | 1998-12-21 | 1999-11-24 | 侯树勋 | External fixator |
| CN2577783Y (en) * | 2002-10-12 | 2003-10-08 | 刘勇 | External fixing supporter for bone fracture |
| DE102006008515A1 (en) * | 2006-02-23 | 2007-09-06 | Sports-Ace International Co., Ltd. | Stick with adjustable length to act as a staff has an internal tube in an external tube so as to rotate and move on axis as well as a ringed stopper, a longitudinal slot and a cone-shaped wall |
| CN201123842Y (en) * | 2007-12-20 | 2008-10-01 | 周建明 | Exterior fixing rack system |
| CN201420734Y (en) * | 2009-06-03 | 2010-03-10 | 潍柴动力股份有限公司 | Telescopic rod |
| CN201905991U (en) * | 2010-11-26 | 2011-07-27 | 徐利江 | Stretching, pressurizing and adjusting rod for external bone fixation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |